CN1909066A - 音频编码码量控制和调整的方法 - Google Patents
音频编码码量控制和调整的方法 Download PDFInfo
- Publication number
- CN1909066A CN1909066A CNA2005100284057A CN200510028405A CN1909066A CN 1909066 A CN1909066 A CN 1909066A CN A2005100284057 A CNA2005100284057 A CN A2005100284057A CN 200510028405 A CN200510028405 A CN 200510028405A CN 1909066 A CN1909066 A CN 1909066A
- Authority
- CN
- China
- Prior art keywords
- factor
- sign indicating
- indicating number
- value
- frequency band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000001228 spectrum Methods 0.000 claims abstract description 23
- 238000013139 quantization Methods 0.000 claims description 38
- 238000011002 quantification Methods 0.000 claims description 9
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 claims description 8
- FEPMHVLSLDOMQC-UHFFFAOYSA-N virginiamycin-S1 Natural products CC1OC(=O)C(C=2C=CC=CC=2)NC(=O)C2CC(=O)CCN2C(=O)C(CC=2C=CC=CC=2)N(C)C(=O)C2CCCN2C(=O)C(CC)NC(=O)C1NC(=O)C1=NC=CC=C1O FEPMHVLSLDOMQC-UHFFFAOYSA-N 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
- 238000012804 iterative process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/002—Dynamic bit allocation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005100284057A CN1909066B (zh) | 2005-08-03 | 2005-08-03 | 音频编码码量控制和调整的方法 |
US11/458,179 US20070033022A1 (en) | 2005-08-03 | 2006-07-18 | Method of bitrate control and adjustment for audio coding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005100284057A CN1909066B (zh) | 2005-08-03 | 2005-08-03 | 音频编码码量控制和调整的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1909066A true CN1909066A (zh) | 2007-02-07 |
CN1909066B CN1909066B (zh) | 2011-02-09 |
Family
ID=37700152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005100284057A Expired - Fee Related CN1909066B (zh) | 2005-08-03 | 2005-08-03 | 音频编码码量控制和调整的方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20070033022A1 (zh) |
CN (1) | CN1909066B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102341846A (zh) * | 2009-03-04 | 2012-02-01 | 韩国科亚电子股份有限公司 | 用于音频编码的量化 |
CN102801971A (zh) * | 2011-05-23 | 2012-11-28 | 索尼公司 | 编码装置、编码方法和程序 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101790757B (zh) * | 2007-08-27 | 2012-05-30 | 爱立信电话股份有限公司 | 语音与音频信号的改进的变换编码 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3237089B2 (ja) * | 1994-07-28 | 2001-12-10 | 株式会社日立製作所 | 音響信号符号化復号方法 |
US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
WO1997029549A1 (fr) * | 1996-02-08 | 1997-08-14 | Matsushita Electric Industrial Co., Ltd. | Codeur, decodeur, codeur-decodeur et support d'enregistrement de signal audio large bande |
WO2005004113A1 (ja) * | 2003-06-30 | 2005-01-13 | Fujitsu Limited | オーディオ符号化装置 |
CN1461112A (zh) * | 2003-07-04 | 2003-12-10 | 北京阜国数字技术有限公司 | 一种基于极小化全局噪声掩蔽比准则和熵编码的量化的音频编码方法 |
-
2005
- 2005-08-03 CN CN2005100284057A patent/CN1909066B/zh not_active Expired - Fee Related
-
2006
- 2006-07-18 US US11/458,179 patent/US20070033022A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102341846A (zh) * | 2009-03-04 | 2012-02-01 | 韩国科亚电子股份有限公司 | 用于音频编码的量化 |
CN102341846B (zh) * | 2009-03-04 | 2013-09-25 | 韩国科亚电子股份有限公司 | 用于音频编码器的量化方法和装置 |
CN102801971A (zh) * | 2011-05-23 | 2012-11-28 | 索尼公司 | 编码装置、编码方法和程序 |
Also Published As
Publication number | Publication date |
---|---|
US20070033022A1 (en) | 2007-02-08 |
CN1909066B (zh) | 2011-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8073050B2 (en) | Encoding device and encoding method | |
KR101343267B1 (ko) | 주파수 세그먼트화를 이용한 오디오 코딩 및 디코딩을 위한 방법 및 장치 | |
CN1172293C (zh) | 有效频谱包络编码方法及其编解码设备 | |
US7493256B2 (en) | Method and apparatus for high performance low bit-rate coding of unvoiced speech | |
US8032371B2 (en) | Determining scale factor values in encoding audio data with AAC | |
CN1249671C (zh) | 量化噪声整形方法及装置 | |
RU2719008C1 (ru) | Аудиокодер для кодирования аудиосигнала, способ для кодирования аудиосигнала и компьютерная программа, учитывающие детектируемую спектральную область пиков в верхнем частотном диапазоне | |
CN1195930A (zh) | 音频信号编码方法及其有关设备 | |
CN1735925A (zh) | 使用网格降低mpeg-2高级音频编码的比例因子传输成本 | |
TW200828826A (en) | Apparatus and method for encoding an information signal | |
RU2015116854A (ru) | Вычисление отношения сигнал-шум конвертора с уменьшенной сложностью | |
CN1909066A (zh) | 音频编码码量控制和调整的方法 | |
CN1461112A (zh) | 一种基于极小化全局噪声掩蔽比准则和熵编码的量化的音频编码方法 | |
CN1867967A (zh) | 音频编码中的率失真控制方案 | |
CN1485849A (zh) | 数字音频编码器及解码方法 | |
CN100420155C (zh) | 宽带音频压缩编码器的频带组划分方法 | |
CN111344784A (zh) | 控制编码器和/或解码器中的带宽 | |
CN101271691B (zh) | 一种时域噪声整形工具启动判决方法及装置 | |
JP2003233397A (ja) | オーディオ符号化装置、オーディオ符号化プログラム及びオーディオ符号化データ伝送装置 | |
WO2003063160A1 (en) | Method and unit for substracting quantization noise from a pcm signal | |
JPH0944198A (ja) | 音声の準可逆符号化装置 | |
JP3725876B2 (ja) | オーディオ符号化器とその符号化処理プログラム | |
Serantes et al. | A fast noise-scaling algorithm for uniform quantization in audio coding schemes | |
JP2003271199A (ja) | オーディオ信号の符号化方法及び符号化装置 | |
WO2005086137A1 (fr) | Procede de codage/decodage fonde sur la mise en correspondance de modeles et sur l'analyse multi-distinguabilite |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: KUNSHAN JADE TECHNOLOGIES CO., LTD. Free format text: FORMER OWNER: SHANGHAI JADE TECHNOLOGIES CO., LTD. Effective date: 20100719 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201203 BUILDING 16, NO.115, LANE 572, BIBO ROAD, ZHANGJIANG HI-TECH PARK, PUDONG NEW AREA, SHANGHAI CITY TO: 215311 TOWER ABCD, 12/F, SOUTH BUILDING, KUNSHANPUDONG SOFTWARE PARK, BACHENG TOWN, KUNSHAN CITY |
|
TA01 | Transfer of patent application right |
Effective date of registration: 20100719 Address after: A ABCD 12 layer 215311 town Kunshan city Kunshan Pudong Software Park South Applicant after: Shanghai Jade Technologies Co., Ltd. Address before: 201203, No. 16, building 572, Lane 115, blue wave road, Zhangjiang hi tech park, Shanghai, Pudong New Area Applicant before: Shanghai Jiede Microelectronic Co., Ltd. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20120803 |